Matematika bantu jawab dong plss​

martineluettgenulv – June 06, 2023

bantu jawab dong plss​

1. 90° = 3x + 2x

90° = 5x

- 5x = -90

x = 18°

besar sudut BAC = 2x = 2(18) = 36°

2. 180 = 3x + (5x + 20)

180 = 8x + 20

180 - 20 = 8x

160 = 8x

20 = x

besar sudut QRS = 5x + 20 = 5(20) + 20 = 120°